jquery chosen api

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Chosen (v1.8.2)

Chosen has a number of options and attributes that allow you to have full control of your select boxes.

Options

The following options are available to pass into Chosen on instantiation.

Example:

  $(".my_select_box").chosen({    disable_search_threshold: 10,    no_results_text: "Oops, nothing found!",    width: "95%"  });
OptionDefaultDescriptionallow_single_deselectfalseWhen set to true on a single select, Chosen adds a UI element which selects the first element (if it is blank).disable_searchfalseWhen set to true, Chosen will not display the search field (single selects only).disable_search_threshold0Hide the search input on single selects if there are n or fewer options.enable_split_word_searchtrueBy default, searching will match on any word within an option tag. Set this option to false if you want to only match on the entire text of an option tag.inherit_select_classesfalseWhen set to true, Chosen will grab any classes on the original select field and add them to Chosen’s container div.max_selected_optionsInfinityLimits how many options the user can select. When the limit is reached, the chosen:maxselectedevent is triggered.no_results_text"No results match"The text to be displayed when no matching results are found. The current search is shown at the end of the text (e.g., No results match "Bad Search").placeholder_text_multiple"Select Some Options"The text to be displayed as a placeholder when no options are selected for a multiple select.placeholder_text_single"Select an Option"The text to be displayed as a placeholder when no options are selected for a single select.search_containsfalseBy default, Chosen’s search matches starting at the beginning of a word. Setting this option totrue allows matches starting from anywhere within a word. This is especially useful for options that include a lot of special characters or phrases in ()s and []s.single_backstroke_deletetrueBy default, pressing delete/backspace on multiple selects will remove a selected choice. When false, pressing delete/backspace will highlight the last choice, and a second press deselects it.widthOriginal select width.The width of the Chosen select box. By default, Chosen attempts to match the width of the select box you are replacing. If your select is hidden when Chosen is instantiated, you must specify a width or the select will show up with a width of 0.display_disabled_optionstrueBy default, Chosen includes disabled options in search results with a special styling. Setting this option to false will hide disabled results and exclude them from searches.display_selected_optionstrue

By default, Chosen includes selected options in search results with a special styling. Setting this option to false will hide selected results and exclude them from searches.

Note: this is for multiple selects only. In single selects, the selected result will always be displayed.

include_group_label_in_selectedfalse

By default, Chosen only shows the text of a selected option. Setting this option to true will show the text and group (if any) of the selected option.

max_shown_resultsInfinity

Only show the first (n) matching options in the results. This can be used to increase performance for selects with very many options.

case_sensitive_searchfalse

By default Chosen's search is case-insensitive. Setting this option to true makes the search case-sensitive.

hide_results_on_selecttrue

By default Chosen's results are hidden after a option is selected. Setting this option to false will keep the results open after selection. This only applies to multiple selects.

rtlfalse

Chosen supports right-to-left text in select boxes. Set this option to true to support right-to-left text options.

Note: the chosen-rtl class on the select has precedence over this option. However, the classname approach is deprecated and will be removed in future versions of Chosen.

Attributes

Certain attributes placed on the select tag or its options can be used to configure Chosen.

Example:

  <select class="my_select_box" data-placeholder="Select Your Options">    <option value="1">Option 1</option>    <option value="2" selected>Option 2</option>    <option value="3" disabled>Option 3</option>  </select>
AttributeDescriptiondata-placeholder

The text to be displayed as a placeholder when no options are selected for a select. Defaults to "Select an Option" for single selects or "Select Some Options" for multiple selects.

Note:This attribute overrides anything set in theplaceholder_text_multiple or placeholder_text_single options.

multipleThe attribute multiple on your select box dictates whether Chosen will render a multiple or single select.selected, disabledChosen automatically highlights selected options and disables disabled options.

Classes

Classes placed on the select tag can be used to configure Chosen.

Example:

  <select class="my_select_box chosen-rtl">    <option value="1">Option 1</option>    <option value="2">Option 2</option>    <option value="3">Option 3</option>  </select>
ClassnameDescriptionchosen-rtl

Chosen supports right-to-left text in select boxes. Add the class chosen-rtl to your select tag to support right-to-left text options.

Note: The chosen-rtl class will pass through to the Chosen select even when the inherit_select_classes option is set to false.

Note: This is deprecated in favor of using the rtl:true option (see theOptions section).

Triggered Events

Chosen triggers a number of standard and custom events on the original select field.

Example:

  $('.my_select_box').on('change', function(evt, params) {    do_something(evt, params);  });
EventDescriptionchange

Chosen triggers the standard DOM event whenever a selection is made (it also sends a selected or deselected parameter that tells you which option was changed).

Note: The selected and deselected parameters are not available for Prototype.

chosen:readyTriggered after Chosen has been fully instantiated.chosen:maxselectedTriggered if max_selected_options is set and that total is broken.chosen:showing_dropdownTriggered when Chosen’s dropdown is opened.chosen:hiding_dropdownTriggered when Chosen’s dropdown is closed.chosen:no_resultsTriggered when a search returns no matching results.

Note: all custom Chosen events (those that begin with chosen:) also include the chosenobject as a parameter.

Triggerable Events

You can trigger several events on the original select field to invoke a behavior in Chosen.

Example:

  // tell Chosen that a select has changed  $('.my_select_box').trigger('chosen:updated');
EventDescriptionchosen:updatedThis event should be triggered whenever Chosen’s underlying select element changes (such as a change in selected options).chosen:activateThis is the equivalant of focusing a standard HTML select field. When activated, Chosen will capure keypress events as if you had clicked the field directly.chosen:openThis event activates Chosen and also displays the search results.chosen:closeThis event deactivates Chosen and hides the search results.
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